What is the world’s single largest day of shopping rakes in more money than Black Friday and Cyber Monday combined, and of course, takes place in the world’s most populous country — China? It is Single’s Day! As the name suggests, the unofficial money crazed holiday celebrates folks who are without significant others. It always falls on November 11, which is to say 11/11 — symbolizing, you guessed it, a bunch of singles. Huge retailer run deals akin to black friday and they pay off.